the government of china imposed tighter controls on internet usage today. now, china's 500 million web users will have to provide their real names when they register for internet service. and providers must delete any web content deemed illegal, and report it to authorities. leading writers and bloggers insisted it's a new way for china's communist leaders to censor their critics. >> ( translated ): since the internet came into china, the chinese government has been repeatedly imposing restrictive measures, such as shielding, blocking and banning. it has even spent billions of dollars to build a firewall against overseas sites. they just don't want to see any freedom of speech which is provided by the constitution because it will hurt their vested interest. >> holman: the new curbs come in the wake of a series of online discussions that have helped expose corruption scandals. russian president vladimir putin signed a bill into law today banning americans from adopting russian children. the move terminated more than 50 adoptions that already were underway. t